IEC_TR_62380-2004.pdf

TECHNICALREPORTIEC TR 62380First edition2004-08Reliability data handbook Universal model for reliability prediction of electronics components,PCBsand equipment Reference number IEC/TR 62380:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TECHNICALREPORTIECTR 62380First edition2004-08Reliability data handbook Universal model for reliability prediction of electronics components,PCBsand equipment:PRICE CODE?IEC 2004?Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chXCFor price,see current catalogueCommission Electrotechnique InternationaleInternational Electrotechnical Commission?LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 62380?IEC:2004(E)CONTENTSFOREWORD.5INTRODUCTION.71Scope.82Normative references.83Terms and definitions.94Conditions of use.104.1Introductory remarks.104.2Assumptions adopted for TR 62380.114.3Influencing factors.134.4How to use the data.144.5Uses and aims of a reliability prediction.155Environment influence.165.1General remarks.165.2Environment types defined.165.3Electrical environment conditions.205.4Validity model according to environment.205.5Components choice.205.6Learning during the deployment phase of new equipment.215.7Mission profile.225.8Mission profile examples.236Equipped printed circuit boards and hybrid circuits(IEC 60326).256.1Failure rate calculation of an equipped printed circuit board.256.2Hybrid circuits.267Integrated circuits.277.1Validity domain.277.2Junction temperature evaluation of an integrated circuit.277.3The reliability model.308Diodes and thyristors,transistors,optocouplers(IEC 60747-xx).368.1Evaluating the junction temperature of diodes and transistors.368.2Low power diodes.388.3Power diodes.408.4Low power transistors.428.5Power transistors.448.6Optocouplers.469Optoelectronics.499.1Light emitting diodes diode modules(IEC 60747-12-2,IEC 62007).499.2Laser diodes modules-Failure rate.529.3Photodiodes and receiver modules for telecommunications(IEC 60747-12).539.4Passive optic components.549.5Miscellaneous optic components.5410Capacitors and thermistors(ntc).5510.1 Fixed plastic,paper,dielectric capacitors-Radio interference suppression capacitors(plastic,paper).55LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TR 62380?IEC:2004(E)3 10.2 Fixed ceramic dielectric capacitors Defined temperature coefficient Class I(IEC 60384).5610.3 Fixed ceramic dielectric capacitors Non defined temperature coefficient Class II Radio interference suppression capacitors(Ceramic,class II).5710.4 Tantalum capacitors,solid electrolyte(IEC 60384).58